STORAGE SYSTEM HAVING PROCESSOR AND INTERFACE ADAPTERS THAT CAN BE INCREASED OR DECREASED BASED ON REQUIRED PERFORMANCE
First Claim
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1. A storage system comprising:
- a plurality of interface units including a first interface unit and a second interface unit;
a plurality of cache memory units storing data temporarily which is sent from said interface units;
a plurality of processor units controlling data transfer between said interface units and said cache memory units;
a disk device unit including a plurality of disk devices storing data which said processor units control to send from said cache memory units through said second interface unit;
a first backplane connected to said interface units, said cache memory units, and said processor units; and
a second backplane connected to said disk device unit;
wherein said first interface unit connects to a computer through a first cable,wherein said second interface unit connects to said second backplane through a second cable,wherein said first backplane including a plurality of connectors, each of said connectors which connects one of said interface units, one of said cache memory units, or one of said processor units,wherein the number of said interface units is increased or decreased independently of said cache memory units and said processor units by connecting to said first backplane through one of said connectors,wherein the number of said cache memory units is increased or decreased independently of said interface units and said processor units by connecting to said first backplane through one of said connectors, andwherein the number of said processor units is increased or decreased independently of said interface units and said cache memory units by connecting to said first backplane through one of said connectors.
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Abstract
A storage system is comprised of an interface unit 10 which has an interface with a server 3 or hard drives 2, a memory unit 21 which has a cache memory module 126 for storing data to be read from/written to the server 3 or the hard drives 2 and a control information memory module 127 for storing control information of the system, a processor unit 81 which has a microprocessor for controlling the read/write of data between the server 3 and the hard drives 2, and an interconnection 31, wherein the interface unit 10, memory unit 21 and processor unit 81 are interconnected with the interconnection 31.
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Citations
14 Claims
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1. A storage system comprising:
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a plurality of interface units including a first interface unit and a second interface unit; a plurality of cache memory units storing data temporarily which is sent from said interface units; a plurality of processor units controlling data transfer between said interface units and said cache memory units; a disk device unit including a plurality of disk devices storing data which said processor units control to send from said cache memory units through said second interface unit; a first backplane connected to said interface units, said cache memory units, and said processor units; and a second backplane connected to said disk device unit; wherein said first interface unit connects to a computer through a first cable, wherein said second interface unit connects to said second backplane through a second cable, wherein said first backplane including a plurality of connectors, each of said connectors which connects one of said interface units, one of said cache memory units, or one of said processor units, wherein the number of said interface units is increased or decreased independently of said cache memory units and said processor units by connecting to said first backplane through one of said connectors, wherein the number of said cache memory units is increased or decreased independently of said interface units and said processor units by connecting to said first backplane through one of said connectors, and wherein the number of said processor units is increased or decreased independently of said interface units and said cache memory units by connecting to said first backplane through one of said connectors. - View Dependent Claims (2, 3, 4, 5)
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6. A storage system comprising:
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a plurality of interface units including a first interface unit and a second interface unit; a plurality of memory units, each of said memory units including a cache memory module temporarily storing data which is sent from said interface units; a plurality of processor units controlling data transfer between said interface units and said memory units; a disk device unit including a plurality of disk devices storing data which said processor units control to send from said memory units through said second interface unit; wherein each of said interface units is mounted on each of first circuit boards, and each of said memory units is mounted on each of second circuit boards, and each of said processor units is mounted on each of third circuit boards, wherein said first backplane including a plurality of connectors, and each of said first circuit boards, each of said second circuit boards, or each of said third circuit boards connects to a first backplane through one of said connectors respectively, wherein the number of first circuit boards is increased or decreased independently of said second circuit boards and said third circuit boards, by connecting to said first backplane through one of said connectors, wherein the number of second circuit boards is increased or decreased independently of said first circuit boards and said third circuit boards, by connecting to said first backplane through one of said connectors, wherein the number of third circuit boards is increased or decreased independently of said first circuit boards and said second circuit boards, by connecting to said first backplane through one of said connectors, wherein said disk device unit connects to a second backplane, wherein said first interface unit connects to a computer through a first cable, wherein said second interface unit connects to said second backplane through a second cable, wherein when each of said processor units receives a write command from said first interface unit, each of said processor units controls to transfer write data from said first interface unit to one of said memory units, and controls to transfer data from said one of said memory units to said second interface unit to store said write data in one of said disk devices. - View Dependent Claims (7, 8, 9, 10, 11, 12, 13, 14)
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Specification